Leading-in outfit for electric vessels



Oct. 29. 1940. o. BAIER ET AL LEADING-IN OUTFIT FQR ELECTRIC VESSELS Filed Oct. 22, 1938 Patented Oct. 29,

UNITED STATES PATENT OFFICE metal screens the vessel. 10

fastened by means of This phenomenon is are mounted.

The invention lowing d accompanying drawing i the arrangement shown in Fig. 1, Fig. 3

Figs

which leads 2, 3 1. The leads 2,3

instance. The bul likewise be of ceramic material,

instead of any other well-known with devices When melting the m LEADING-IN OUTFIT FOR ELECTRIC VESSELS Otto Baier, Alfred Gaebel, lin, Germany, assignors sellschaft, B P y Application October 22, 1938, Serial N0 and Edmund Liipp, Berto C. Lorenz Aktiengeerlin-Tempelhof, Germany, a com- In Germany October 22, 1937 3 Claims.

Sometimes however, especially in the manufacture of ceramic vacuum vessels having leads sealing melts, so-called the leads is impaired even if no getter material has been deposited between them.

will be understood from the folescription, reference being had to the n which:

drawn to 1 and 2, is a fragmenaterial from which the ular hoods leads, as shown in 1. Such hoods are ads, that is to say, of vessel I while the Alternatively, coating 6 metal, preferably a precious metal.

The arrangement represented in Figs. 2 and 3 has a lead 8 composed of two conductors b, 0. Conductor b, fast seal 1, is of another material having a vapreferably extends beyond the weld d.

The arrangement shown in Figs. 2 and 3 thus makes use of the fact that materials having a vaporizable oxide surface, as is the case with on lead 8, before this is sealed i nto the base 4. The invention is applicable,

for instance, to

What is claimed is:

1. A leading-in wire structure for a vacuum vessel comprising a member of insulating material having leading-in conductors passing therethrough each of said conductors being composed of a first part having a vaporizable oxide surface and a second part free from such surface, serial- 1y connected, said first part being fixed to said member by a vacuum tight seal at a point intermediate its ends, and a protective means free from vaporizable oxide surface extending from said seal to a point intermediate the ends of said second part.

2. A device according to claim 1, wherein the two parts are united with each other end to end.

EDMUND LoPP. 

